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Guidable intravascular blood pump and related methods

  • US 10,357,598 B2
  • Filed: 10/22/2018
  • Issued: 07/23/2019
  • Est. Priority Date: 09/03/1999
  • Status: Expired due to Fees
First Claim
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1. An intravascular blood pump system, comprising:

  • a blood pump comprising a rotor having a rotor hub, at least one blade extending outward from the rotor hub, and a shroud within which the rotor is at least partially rotatably disposed;

    a catheter coupled to the blood pump;

    a cannula that is coupled to the blood pump;

    one or more first ports and one or more second ports establishing fluid communication between a lumen of the cannula and an exterior region of the cannula, wherein at least one first port of the one or more first ports is located in proximity to the rotor and at least one second port of the one or more second ports is spaced apart from and located distal to the at least one first port, wherein the cannula is configured such that when the blood pump is positioned in the patient to provide left-heart support a distal end of the cannula and the at least one second port are positioned inside the patient'"'"'s heart and a proximal end of the cannula and the at least one first port are positioned in the patient'"'"'s aorta, and the blood pump is configured to draw blood from the patient'"'"'s heart into the at least one second port through the cannula lumen and out the at least one first port to provide left-heart support while the cannula is positioned across an aortic valve of the patient; and

    a distal tip, wherein the distal tip is pigtail shaped or J-shaped, and when the blood pump is positioned in the patient to provide left-heart support the distal tip is wholly within a left ventricle of the patient.

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